BU97540KV-M Datasheet, PDF (21/70 Pages) Rohm – Multi-function Segment Drivers

BU97540KV-M
15. W10 to W18^(Note15), W20 to W28, W30 to W38, W40 to W48, W50 to W58, W60 to W68, W70 to W78, W80 to W88 and
W90 to W98: PWM output waveform duty setting control data. These control data bits set the high level pulse width (duty)
for pwm output waveforms.
Table below shows PWM high level pulse width when PF0 to PF3 command setting is [PF0,PF1,PF2,PF3]=[0,x,x,x]
n = 1 to 9 , Tp = 1/fp
Wn0
Wn1
Wn2
Wn3
Wn4
Wn5
Wn6
Wn7 Wn8
PWM duty
0
0
0
0
0
0
0
0
0
(0/256) x Tp
0
0
0
0
0
0
0
0
1
(1/256) x Tp
0
0
0
0
0
0
0
1
0
(2/256) x Tp
0
0
0
0
0
0
0
1
1
(3/256) x Tp
0
0
0
0
0
0
1
0
0
(4/256) x Tp
0
0
0
0
0
0
1
0
1
(5/256) x Tp
0
0
0
0
0
0
1
1
0
(6/256) x Tp
0
0
0
0
0
0
1
1
1
(7/256) x Tp
0
0
0
0
0
1
0
0
0
(8/256) x Tp
0
0
0
0
0
1
0
0
1
(9/256) x Tp
0
0
0
0
0
1
0
1
0
(10/256) x Tp
0
0
0
0
0
1
0
1
1
(11/256) x Tp
0
0
0
0
0
1
1
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
1
1
1
0
(12/256) x Tp
(13/256) x Tp
(14/256) x Tp
0
0
0
0
0
1
1
1
1
(15/256) x Tp
0
0
0
0
1
0
0
0
0
(16/256) x Tp
0
0
0
0
1
0
0
0
1
(17/256) x Tp
0
0
0
0
1
0
0
1
0
(18/256) x Tp
0
0
0
0
1
0
0
1
1
(19/256) x Tp
0
・・・
0
0
0
1
0
1
0
0
・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・
(20/256) x Tp
・・・
0
1
1
1
0
1
0
1
1
0
1
1
1
0
1
1
0
0
(235/256) x Tp
(236/256) x Tp
0
1
1
1
0
1
1
0
1
(237/256) x Tp
0
1
1
1
0
1
1
1
0
(238/256) x Tp
0
1
1
1
0
1
1
1
1
(239/256) x Tp
0
1
1
1
1
0
0
0
0
(240/256) x Tp
0
1
1
1
1
0
0
0
1
(241/256) x Tp
0
1
1
1
1
0
0
1
0
(242/256) x Tp
0
1
1
1
1
0
0
1
1
(243/256) x Tp
0
1
1
1
1
0
1
0
0
0
1
1
1
1
0
1
0
1
(244/256) x Tp
(245/256) x Tp
0
1
1
1
1
0
1
1
0
(246/256) x Tp
0
1
1
1
1
0
1
1
1
(247/256) x Tp
0
1
1
1
1
1
0
0
0
(248/256) x Tp
0
1
1
1
1
1
0
0
1
(249/256) x Tp
0
1
1
1
1
1
0
1
0
(250/256) x Tp
0
1
1
1
1
1
0
1
1
(251/256) x Tp
0
1
1
1
1
1
1
0
0
(252/256) x Tp
0
1
1
1
1
1
1
0
1
(253/256) x Tp
0
1
1
1
1
1
1
1
0
(254/256) x Tp
0
1
1
1
1
1
1
1
1
(255/256) x Tp
1
0
0
0
0
0
0
0
0
(256/256) x Tp
1
0
0
0
0
0
0
0
1
(256/256) x Tp
1
0
0
0
0
0
0
1
0
(256/256) x Tp
1
・・・
0
0
0
0
0
0
1
1
・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・
(256/256) x Tp
・・・
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
0
1
(256/256) x Tp
(256/256) x Tp
1
1
1
1
1
1
1
1
0
(256/256) x Tp
1
1
1
1
1
1
1
1
1
(256/256) x Tp
(Note15)
W10 to W18:S1/P1/G1 pwm duty data
W20 to W28:S2/P2/G2 pwm duty data
W30 to W38:S3/P3/G3 pwm duty data
W40 to W48:S4/P4/G4 pwm duty data
W50 to W58:S5/P5/G5 pwm duty data
W60 to W68:S6/P6/G6 pwm duty data
W70 to W78:S7/P7/G7 pwm duty data
W80 to W88:S8/P8/G8 pwm duty data
W90 to W98:S9/P9/G9 pwm duty data
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29.Jun.2015 Rev.002